Gemini on Question 22, Sep 26

Here are the first two paragraphs of the English Wikipedia article on the Peace of Westphalia (which is the actual title of the article; "Treaty of Westphalia" redirects there), based on its most stable and recent revisions:

The Peace of Westphalia (German: Westfälischer Friede, pronounced [vɛstˈfɛːlɪʃɐ ˈfʁiːdə]) is the collective name for two peace treaties signed in October 1648 in the Westphalian cities of Osnabrück and Münster. They ended the Thirty Years' War (1618–1648) and brought peace to the Holy Roman Empire, closing a calamitous period of European history that killed approximately eight million people. The Holy Roman Emperor, Ferdinand III, the kingdoms of France and Sweden, and their respective allies among the princes of the Holy Roman Empire participated in these treaties.

The negotiation process was lengthy and complex. Talks took place in two cities, because each side wanted to meet on territory under its own control. A total of 109 delegations arrived to represent the belligerent states, but not all delegations were present at the same time. Two treaties were signed to end the war in the Empire: the Treaty of Münster and the Treaty of Osnabrück. These treaties ended the Thirty Years' War in the Holy Roman Empire, with the Habsburgs and their Catholic allies on one side, battling the Protestant powers (Sweden and certain Holy Roman principalities) allied with France, which was Catholic but strongly anti-Habsburg.

(Note: Because Wikipedia is a collaboratively edited and constantly updating encyclopedia, the exact phrasing of the live article may occasionally vary or shift slightly from day to day.)